Bug Description

When exaile has focus, there should be standard-keyboard shortcuts for core functionality. Specifically, Play/Pause should be mapped to [spacebar] as is convention in the majority of music apps. This would help those w/o mulitmedia keyboards and help Exaile better adhere to convention.

> And there are quite a few widgets where space has no meaning, which
> is why I believe a dedicated shortcut that wouldn't be available half of
> the time would be more appropriate.

Really? Not only is tat wildyly inconsistent ui design, but there really aren't all that many widgets in exaile that are focusable and aren't sensitive to space - the volume control, the collection tree, and the playlist view. Every other main widget in exaile is either sensitive to space, or is not focusable and therefore irrelevant to this argument. Given that we already have one binding that only works when the playlist has focus (left/right for seeking), i think it makes the most sense to implement space for play/pause in a similar manner.

This is a typo from me, I of course meant "where space has a meaning". Which means I don't agree to using space since it is already bound by GTK in lists, text entries, menus, tree views, and buttons at least.